3644320199 has 4 divisors (see below), whose sum is σ = 3924652536. Its totient is φ = 3363987864.

The previous prime is 3644320181. The next prime is 3644320223. The reversal of 3644320199 is 9910234463.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3644320199 - 2²⁰ = 3643271623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3644320159) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140166149 + ... + 140166174.

It is an arithmetic number, because the mean of its divisors is an integer number (981163134).

Almost surely, 2^3644320199 is an apocalyptic number.

3644320199 is a deficient number, since it is larger than the sum of its proper divisors (280332337).

3644320199 is a wasteful number, since it uses less digits than its factorization.

3644320199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280332336.

The product of its (nonzero) digits is 139968, while the sum is 41.

The square root of 3644320199 is about 60368.2051994260. The cubic root of 3644320199 is about 1538.8826717101.

The spelling of 3644320199 in words is "three billion, six hundred forty-four million, three hundred twenty thousand, one hundred ninety-nine".